Avast Anti-virus randomly says something is trying to shut it down

I'm not sure if I have a malware infection or if my anti-virus is just being glitchy, but my Avast antivirus has lately been occasionally displaying a pop-up window saying that something is trying to shut it down, and that if I am not responsible, I should say "no." I obviously did not tell Avast to shut down.

I did a Malwarebytes scan a few weeks ago, and it found nothing, and even tried using ESET online scanner, and it also found nothing wrong, and I haven't had any other symptoms of an infection. Thus, I assumed it wasn't malware at first. However, I keep getting the Avast pop-up occassionally, so I wanted to check here to make absolutely sure I'm not infected with anything.

Note: **Do not mouseclick ComboFix's window while it's running. That may cause it to stall**Note: **If you get a message saying "Illegal operation attempted on a registry key that has been marked for deletion", please restart your computer.**

>>> TDSSKiller: Double-click on TDSSKiller.exe to run the application.

Click on the Start Scan button and wait for the scan and disinfection process to be over.

If an infected file is detected, the default action will be Cure. Instead, choose SKIP, then click on Continue.

If a suspicious file is detected, the default action will be Skip, click on Continue.

If you are asked to reboot the computer to complete the process, click on the Reboot Now button. A report will be automatically saved at the root of the System drive ((usually C:\) in the form of "TDSSKiller.[Version]_[Date]_[Time]_log.txt" (for example, C:\TDSSKiller.2.2.0_20.12.2009_15.31.43_log.txt). Please copy and paste the contents of that file here.

If no reboot is required, click on Report. A log file will appear. Please copy and paste the contents of that file in your next reply.

Unfortunately your last post hit the character limit. The TDSSKiller report is incomplete and the AdwCleaner log is missing entirely. Please include these logs in your next reply. Please check if your answer covers all the required information. You might need several posts

And this single log has already gone on for more than two posts, so I am going to assume I did something wrong and not post the rest of it after this part until I get further instructions, because I think it would take at least a good 20 or so posts worth of content to post all of OTL.Txt. Sorry, what did I do wrong?

And this single log has already gone on for more than two posts, so I am going to assume I did something wrong and not post the rest of it after this part until I get further instructions, because I think it would take at least a good 20 or so posts worth of content to post all of OTL.Txt. Sorry, what did I do wrong?

I'm very sorry - there was a typo in my instructions.

Please do another OTL scan using the following instructions. The log should be much shorter this time.

Return to OTL.exe, right click in the "Custom Scans/Fixes" window (under the light green bar) and choose Paste.

Click the redRun Fix button.

A fix log in Notepad will appear. Copy the contents of the fix log to the clipboard by highlighting ALL of them and pressing CTRL + C (or, after highlighting, right-click and choose copy), and paste it in your next reply.

Close OTL.exe

If a file or folder cannot be moved immediately you may be asked to reboot the machine to finish the move process. If you are asked to reboot the machine choose Yes.

====

Please scan your machine with ESET OnlineScan

Hold down Control and click on the following link to open ESET OnlineScan in a new window.ESET OnlineScan

Avast seems to show these notifications very infrequently, and I'm not sure of any pattern. I think maybe it might be usually happening soon after the computer is turned on? Though it doesn't always happen under those circumstances, so I really don't know.

I think it started happening after I did a major update to avast, so like I said in the original post it might just be a glitch. Though I would think they'd have fixed it with another update by now, since that was at least a month ago...

I just wanted to make sure it wasn't malware causing the problem, since that's usually what would attempt to shut an anti-virus down like that. Thanks for confirming that my computer isn't infected!

As for the fixes and scans, OTL.exe stopped responding in the middle of the scan and I had to reboot the computer (not because the program prompted me, but because the program seemed to have shut down windows explorer so I couldn't do anything until I rebooted). Should I run it again? When I rebooted it all I got was this in a notepad file:

Files\Folders moved on Reboot...

File move failed. C:\Windows\temp\_avast_\Webshlock.txt scheduled to be moved on reboot.

As for the fixes and scans, OTL.exe stopped responding in the middle of the scan and I had to reboot the computer (not because the program prompted me, but because the program seemed to have shut down windows explorer so I couldn't do anything until I rebooted). Should I run it again?

Yes, please try it again. Let me know if OTL stalls again.

====

Please open Notepad.

Copy the text in the codebox below to the clipboard by highlighting ALL of them and pressing CTRL + C (or, after highlighting, right-click and choose Copy):

A Notepad window will appear. Copy the contents of the log to the clipboard by highlighting ALL of them and pressing CTRL + C (or, after highlighting, right-click and choose copy), and paste it in your next reply.

Return to OTL.exe, right click in the "Custom Scans/Fixes" window (under the light green bar) and choose Paste.

Click the redRun Fix button.

A fix log in Notepad will appear. Copy the contents of the fix log to the clipboard by highlighting ALL of them and pressing CTRL + C (or, after highlighting, right-click and choose copy), and paste it in your next reply.

Close OTL.exe

If a file or folder cannot be moved immediately you may be asked to reboot the machine to finish the move process. If you are asked to reboot the machine choose Yes.

I'm not sure if I have a malware infection or if my anti-virus is just being glitchy, but my Avast antivirus has lately been occasionally displaying a pop-up window saying that something is trying to shut it down, and that if I am not responsible, I should say "no." I obviously do not tell Avast to shut down.

and follow the instructions to scan your computer with MBAM Anti-Rootkit.

Please read the Introduction section, then follow the steps in the How to use Malwarebytes Anti-Rootkit to remove Rootkits section. Please post the resultant log, which can be found in the MBAR - version number folder on your desktop, and is named mbar-log.

Next, open Avast by clicking on the orange Avast icon in your system-tray. Click on the Maintenance tab. Click on About and please tell me the Program Version number.

Next, click on Scan Logs and tell me the date on the last completed scan, assuming there are any.

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